LLM observability & evals tools used by Fintech & Payments companies
Each line links its public proof and the date usedby last checked it.
15
Fintech & Payments companies use LLM observability & evals tools
The most used: Braintrust (4), Fiddler AI (4), and LangSmith (4).Data as of Oct 23, 2026
Ranking
Tools ranked by the Fintech & Payments companies that use them. Ties go to the stronger proof.
Who uses each tool
Strongest proof first. A job post is a signal, the weakest proof.
1
Braintrust4 companies · Checked Oct 19, 202640 confirmed 4 observed2
Fiddler AI4 companies · Checked Oct 6, 202640 confirmed 4 observed
MastercardChecked Oct 6, 2026
Global PaymentsChecked Oct 6, 2026
LendingPointChecked Oct 6, 2026
OscilarChecked Oct 6, 2026
3
LangSmith4 companies · Checked Oct 23, 202640 confirmed 4 observed
KlarnaChecked Oct 3, 2026
Modern TreasuryChecked Oct 3, 2026
NubankChecked Oct 23, 2026
ZipChecked Oct 23, 2026
4
Arize AI2 companies · Checked Oct 16, 202625
Galileo1 company · Checked Oct 19, 20261
How usedby counts
A company counts once per tool, at its strongest proof: confirmed (a case study, a named testimonial, a press release or the company's own account), declared (the company told usedby), observed (a vendor logo wall or customers page) or signal (a job post). Counts cover the companies on usedby, never the whole market.
1 company that sells software was left out, so a vendor is never counted as a user.
Data as of October 23, 2026.
Questions
Which LLM observability & evals tools do Fintech & Payments companies use most?
Braintrust leads: 4 of the 15 Fintech & Payments companies on usedby that use LLM observability & evals tools use it. Next: Fiddler AI (4), LangSmith (4), Arize AI (2), and Galileo (1). See Braintrust.
How many Fintech & Payments companies use LLM observability & evals tools?
15 Fintech & Payments companies on usedby use at least one of 5 LLM observability & evals tools. It counts the companies usedby tracks.
What proof backs these lines?
Of the 15 companies, each counted at its strongest proof: 0 confirmed, 0 declared, 15 observed and 0 known from a job post.
How does usedby build this ranking?
usedby counts each Fintech & Payments company once per tool, from public proof: case studies, press releases, the company's own site or its declaration to usedby, vendor customer pages and job posts. 1 software vendor is left out. Every line shows its proof and the date usedby last checked it.